Mechanical movement



c. H. GILL.

MECHANICAL MOVEMENT.

APPLICATION FILED DEC-29, 192G. I 1,413,982, Patented Apr. 25, 1922.

gag-ed with the i said element, and without 40 one of the said elementsat the same rota- 1,41e,9s2. I

c AnLEs H. GILL, OF oHIcAeo, I IJNoIs.

,MECHANZCOAL MOVEMENT.

; T aZZ whom timag] concern.

. Mechani either been unprovided for Be it known that I, CHARLns H.

citizen-of the United States,residing at Chicage, in the county of Cookand State of have inventeda new and useful the follow- Illinois,

cal Movement, of which in is a. specification. I a

ll/Iy invention relates to a novelassociationof parts adapted to performvarious mechanical functions that have heretofore or have been.performed by less effective or more complicated aggregations of parts.

My invention has for its objects,- first, the I provision of means fordetecting variations, 1

. in the rotational speeds with respect to each v faster and other oftwo independently rotating elementsg. second, the provision; of means.whereby indication will be given as to which of the two .rotatingeleme'nts 'is rotating which slower than the other; third, the provisionof .means' extent and duration ojrfjthe variation .of rotational speed'sof, the two, elements with respectato each} other may ,be indicated;fourth, the provision of means whereby an element may be movedlongitudinally upon ashaft in either direction by the movements ofeither of' .tw.o independently movable p arts,.both of which arecontinuously enthe movement ofeither of said. independ I ently movableparts-effecting-any movement of-the other of said independently movableparts; fifth, the provisionof means whereby two-elements rotating inopposite directions and maintained. in fixed spaced relationto eachothermay be either moved longitudinallyofa shaft a' distance twice as greatas they-would be moved by the rotatlon'of only tional speed or the shaftmay be moved a like-distance while the-said elements are a restrainedfrom longitudinal movement on said shaft; sixth,'ithe provision of meanswhereby two indep'endentlyrotated, ele- 'ments upon the same shaft maybecaused tovapproach each other or recede from each other as their speedsof rotation vary from each other; and, seventh, to provide means wherebytwo elements upon the same shaft,

when rotated in opposite directions, will either approach ea'chotheror'recede from each other at speeds proportional .to and with powerproportional to the sums of the speeds and-power of the -.-resp.ectiv.erotafipecification of Letters Patent Application fileclilecemher 29,1920. Serial'No. 433,931.

' ing description whereby the the Patented tional movements Tof the twoelementsd appear" from the follow- Other objects will and claims.

I attainj these objects :by the mechanism illustrated the accompanyingdrawings, A

in which Figure 1 is side elevation of the prefer red form ofconstruction embodying the principles of my device; F igure 2 is a crosssectional view of Flgure 1'; and Figure 3 is a plan section of a partofjmy 'device,"taken at the polnt lndlcated by 3-3 in Figure2 andlooking in the, direction indicated by it the arrows at 3-3.

Similar numerals refer to similar parts throughout the In my severalviews. v preferred construction, ajshaft 11 (shown broken away .in thedrawings)- is journaled in suitableybearings so that the. Y freelyrotatable. A wide. "P1111011 12 isprovided withinterna'l 13 for a shortdistance fromitsupper end" and these internal threadsglB engage I andcoact withexternal threads 'ltjwith which .theshaft 11 is provided for aportionof said shaft 11 is its length.

The shaft 'llis further provided with a keyway 15 of suflicient dep'thtoextendto- 1 7 than grooves betweenthe threads 14:. do.- This.

ward the center of that shaft further keyway 15 extends along the'shaft11,- ion gitudinally thereof, beingfcut through the' screw threads 14fora portion of its length. i A wide pinion 16. is ,providedwi th' aninternally extending key ,or'feathe r 17which engages the ke'yway 15 andcompels the shaft 11 to rotate'with theppinion .16" while notinterfering with freelong-itudinal move"- 'ment of'the pinion 16upon'the'shaft fl.

AwasherlS up n the 'shaft ll separates the pinions12 and 16. a Y I A.frame 19 has arms 20 provided with circular apertures 21 through which:the shaft 11 passes and this frame 19 servesto maintain the pinions 12and 16in spaced relation .to each other. NVashers 22upon the shaft 11are interposed between the .pin

ions 12 andl6 respectively and, the frame 105 g arms f 20... Astationary rod 2? passes through cireular apertures' 2i :at each end andpreventsrotation of the I .frame 19 with the shaft 11, the .frame 19free longitudinal sliding moveof the frame 19 while permitting mentthereon. The rod fixed to any? convenient portion of the frame ofthemachine in which thisdevice maybe used;

threads g Y I 1,413,982

Gear wheels and 26 engage the pinio'ns .mission mechanism, subject of myapplica- 12 and 16 respectively and may be either tion forLettersPatent,filed December 29th, fixed upon or rotatably mounted upon a Serial No.433,930, and also, in modified single shaft or upon separate shafts 27and form, in my invention of friction transmis- 5 28, asdiagrammatically shown. The. gear sion mechanism, forming the subject ofmy wheels 25 and. 26 may be driven by separate application, for LettersPatent Serial No. motors or by separate portions of a single 374,683,filed April17th,192().

' machine, When the gear wheel 25 s actuated by the Wh le the separatemotors or machine vibrating or reciprocating movement of a 1 parts thatdrive the gear wheels 25 and 26 member in one direction only and thegear respectively are operating at exactly the wheel 26 is actuated bythe reverse movesame s eed and in the same direction it ment of the samevibratin or reci rocatln at; 7 7 V b will be evident that there Will beno longlmember. the actuation of both the gear 1 Va" .tudinal movementor the frame 19 upon wheels 25 and 26 being in the same direction,

15 the shaft 11, because both the'externally differences in the forwardand backward threaded shaft 11 and the internally threadmovements of thevibrating or reciprocated pinion 12 are rotating in unison. Should 7 ingmember will be indicated by movements the motor or machine part drivingthe gear of the frame 19. When the gear wheel 25 wheel 25 be sloweddown, however, without is actuated in one direction by the move- 29proportionate slowing of the motor ormament in one direction of amovable member chine'part driving the gear wheel 26, the and notactuated by the return movement shaft 11 will be rotated faster than theof that movable member and when the gear pinion 12 and will, assuming aleft to right wheel 26 is similarly actuated by the moverotation "of theshaft 11', force the frame ment of a separate movable member, the

25 19. and its embraced pinions 12 and 16 in difi'erence between thetotal movements in a downward direction upon the shaft 11. the operativedirection of the two movable Should the speed of the gear wheel '25members will be indicated by the movement be increased, instead ofdiminished, the of the frame 19. I employ this latter method movement ofthe frame 19 will be in the of using this mechanical movemenin my upwarddirection, because the internally invention of indicating mechanism,forming threadedpinion 12 will then be in excess the subject of myapplication 1'01 Let ers of the rotational'speed of the shaft 11 andPatent, Serial No. 294,947 filed May 5th, will screw upward uponthatshaft. 1919, and inemy invention of improved in- 7 Should the gear wheel26 be driven at an dicating mechanism, forming the subject of 35increased rate-over the rotational speed of my application for LettersPatent, Serial.

the gear wheel 25, the result would be the No. 433,928, filed December29th, 1920. same as described in the case of the geat- When the gearwheels 25 and 26 are driven wheel 25 having its speed diminished, and Vat equal speeds and in opposite. directions,

a diminishment in the speed of the gear the frame 19 will be moved inone or the 40 wheel 26 would be exactly'the same as an other direction,according to whether the increase inthe speed of the gear wheel '25.gear 25 or the gear 26 is driven in clock- /Vhenever the gear wheels 25and 26 rotate wise direction, at double the speed its movein unison, theframe 19 will remain stationment. would be if only one'of the said'gearar whenever the gear wheel 25 rotates the wheels was being driven.fastest of the two, there will be an upward The pinions 12 and 16 may beindependmovement of the frame 19; and whenever ently placed upon theshaft 11, without the the gear wheel26 rotates the fastest of the frame19, and spaced apart from each other. two, there will'be' a downwardmovement of In that case,'when boththe pinions 12 and the frame 19.These movements of the 16 are driven in the same direction and at 50frame. 19 will be proportional in speed to the same speed they willmaintain their re- 11! the differences in the rates of rotation ofspective positions on the shaft 11. Differthe gear wheels 25 and 26.ences in their respective speeds will cause t will be evident that anindicating dial them to approach or recedefrom each other. or hand canreadily be operated by the up- When driven in opposite directions, they55 wardand downward movements of the will approach orrecede from eachother at 12 frame 19 to indicate when there is variation a rate equal tothe sum of their rotational of speed between thegear wheels 25 and 26,speeds, proportional to the pitch of the screw and also that this samemovement of the threads 14. When thus made to approach frame 19 might beused to operate throttle each other, they will exert pressure upon 60valves or rheostats to control the speeds of any object between themequal to, the sum of 12 the gear wheels 25 and 26 and maintain. thepower transmitted to each. Therefore, them at equality, or that thismovement of this movement is adaptable for die pressing the frame 19might be utilized to control and similar purposes. 7 speed. changingmechanism. I employ it for In this preferred embodiment of my inthislatter purpose in my invention of transvention I have shown theinternally thread- 13 ed element and the key or feather carrying elementas wide faced pinions adapted to remain in'mesh with the 26 respectivelythroughout a considerable range of movement longitudinally of the shaft11, and I have shown the threads upon the shaft 11 terminating at suchpoints as would cause the internal threads of the pinion 12 to be out ofengagement therewith when the limit of longitudinal movement withcontinued mesh with 'thegears 25 and 26 respectively was reached. It is,of course, evident that wide faced gears 25 and 26 might be usedinstead, with thin gears or pinions in place of the pinions 12 and 16,and that numerous other variations of con-. struction might be employedwithout departing from the scope and spirit of my invention. I,therefore, 'do' not wish to be limited to the construction shown anddescribed.

I claim: 7

1. .In a mechanical movement, the combination of a rotatable internallythreaded element, a rotatable member provided with a.

feather, a shaft passing through openings in the said element and thesaid member,

gear wheels 25 and sald internal threads of said element, a keyway insaid shaft engaged by the said-feather threads upon. said shaft engagingwith the I Q of the said member, means for retaining the 7' said elementand the said member in fixed position with relation to each other, meansfor preventing longitudinal movement of the said element and the'saidmember upon the said member, and

pinion in screw engagement with said shaft, i

a second pinion mounted upon said shaft slidably and provided with afeather engaging the said keyway in said shaft, a member slidablymounted upon said shaft and provided with arms embracing both thepinions in'such manner as to maintain said pinions in spacedrelationship't'o each other, means adapted to prevent rotationof thesaid slidably mounted member,

and independent means for rotating each of the said pinions. I

g v CHARLESH. GILL,

35 said shaft, independentmeans for.rotating"- independent means forrotatingthe said element. 2 v

' 2. In a'mechanical movement, the combi-

